>>14329117They aren't human, and they aren't bipedal. This is one weird video. We often misinterpret what we see when it comes to animals. It looks funny and cute, but what if it is dark and not funny at all? They are locked in a little box, it's creepy. They desperately want something they cannot get. Something trivial like going for a walk maybe? Maybe, they want to see grass and the sun. The craving is so strong they can't help but move weirdly, just like the guy from another thread who can't help but punch walls. Nobody laughs at that guy because it's scary and sad, but everybody laughs at animals undergoing stress.